<template>
  <div style="height: 100vh;width:100%;display: flex;justify-content: center;align-items: center">
    <el-row style="display: flex;height: 100%;width: 100%">
      <el-col id="background" refs="background" :span="12" style="display: flex;height: 100%"></el-col>
      <el-col :span="12" style="display: flex;height: 100%;align-items: center;justify-content: center;">
        <div class="container">
          <div class="heading">石家庄市气象局分类强对流天气临近客观预报系统</div>
          <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
            <el-form-item prop="username">
              <el-input
                v-model="loginForm.username"
                type="text"
                auto-complete="off"
                placeholder="账号"
                class="input"
              >
                <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/>
              </el-input>
            </el-form-item>
            <el-form-item prop="password">
              <el-input
                v-model="loginForm.password"
                type="password"
                auto-complete="off"
                placeholder="密码"
                @keyup.enter.native="handleLogin"
              >
                <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon"/>
              </el-input>
            </el-form-item>
            <el-form-item prop="code" v-if="captchaEnabled">
              <el-input
                v-model="loginForm.code"
                auto-complete="off"
                placeholder="验证码"
                style="width: 63%"
                @keyup.enter.native="handleLogin"
              >
                <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon"/>
              </el-input>
              <div class="login-code">
                <img :src="codeUrl" @click="getCode" class="login-code-img"/>
              </div>
            </el-form-item>
            <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
            <el-form-item style="width:100%;">
              <el-button
                :loading="loading"
                size="medium"
                type="primary"
                style="width:100%;"
                @click.native.prevent="handleLogin"
              >
                <span v-if="!loading">登 录</span>
                <span v-else>登 录 中...</span>
              </el-button>
              <div style="float: right;" v-if="register">
                <router-link class="link-type" :to="'/register'">立即注册</router-link>
              </div>
            </el-form-item>
          </el-form>
        </div>
      </el-col>

    </el-row>
  </div>
</template>

<script>
import {getCodeImg} from "@/api/login";
import Cookies from "js-cookie";
import {encrypt, decrypt} from '@/utils/jsencrypt'
import * as THREE from "three"
import VantaClouds from 'vanta/src/vanta.clouds'

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "admin",
        password: "admin123",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          {required: true, trigger: "blur", message: "请输入您的账号"}
        ],
        password: [
          {required: true, trigger: "blur", message: "请输入您的密码"}
        ],
        code: [{required: true, trigger: "change", message: "请输入验证码"}]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  mounted() {
    this.vanta = VantaClouds({
      el: "#background",
      mouseControls: true,
      touchControls: true,
      gyroControls: false,
      minHeight: 200.00,
      minWidth: 200.00,
      skyColor: 0x2f6a82,
      sunGlareColor: 0xd95125,
      THREE: THREE
    })
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, {expires: 30});
            Cookies.set("password", encrypt(this.loginForm.password), {expires: 30});
            Cookies.set('rememberMe', this.loginForm.rememberMe, {expires: 30});
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            this.$router.push({path: this.redirect || "/"}).catch(() => {
            });
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

//.login-form {
//  border-radius: 6px;
//  background: #ffffff;
//  width: 400px;
//  padding: 25px 25px 5px 25px;
//
//  .el-input {
//    height: 38px;
//
//    input {
//      height: 38px;
//    }
//  }
//
//  .input-icon {
//    height: 39px;
//    width: 14px;
//    margin-left: 2px;
//  }
//}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}
.container {
  max-width: 350px;
  background: #F8F9FD;
  background: linear-gradient(0deg, rgb(255, 255, 255) 0%, rgb(244, 247, 251) 100%);
  border-radius: 40px;
  padding: 25px 35px;
  border: 5px solid rgb(255, 255, 255);
  box-shadow: rgba(133, 189, 215, 0.8784313725) 0px 30px 30px -20px;
  margin: 20px;
}

.heading {
  text-align: center;
  font-weight: 900;
  font-size: 20px;
  color: rgb(16, 137, 211);
  padding-bottom: 13px;
}

.form {
  margin-top: 20px;
}

.form .input {
  width: 100%;
  background: white;
  border: none;
  padding: 15px 20px;
  border-radius: 20px;
  margin-top: 15px;
  box-shadow: #cff0ff 0px 10px 10px -5px;
  border-inline: 2px solid transparent;
}

.form .input::-moz-placeholder {
  color: rgb(170, 170, 170);
}

.form .input::placeholder {
  color: rgb(170, 170, 170);
}

.form .input:focus {
  outline: none;
  border-inline: 2px solid #12B1D1;
}

.form .forgot-password {
  display: block;
  margin-top: 10px;
  margin-left: 10px;
}

.form .forgot-password a {
  font-size: 11px;
  color: #0099ff;
  text-decoration: none;
}

.form .login-button {
  display: block;
  width: 100%;
  font-weight: bold;
  background: linear-gradient(45deg, rgb(16, 137, 211) 0%, rgb(18, 177, 209) 100%);
  color: white;
  padding-block: 15px;
  margin: 20px auto;
  border-radius: 20px;
  box-shadow: rgba(133, 189, 215, 0.8784313725) 0px 20px 10px -15px;
  border: none;
  transition: all 0.2s ease-in-out;
}

.form .login-button:hover {
  transform: scale(1.03);
  box-shadow: rgba(133, 189, 215, 0.8784313725) 0px 23px 10px -20px;
}

.form .login-button:active {
  transform: scale(0.95);
  box-shadow: rgba(133, 189, 215, 0.8784313725) 0px 15px 10px -10px;
}

.social-account-container {
  margin-top: 25px;
}

.social-account-container .title {
  display: block;
  text-align: center;
  font-size: 10px;
  color: rgb(170, 170, 170);
}

.social-account-container .social-accounts {
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 5px;
}

.social-account-container .social-accounts .social-button {
  background: linear-gradient(45deg, rgb(0, 0, 0) 0%, rgb(112, 112, 112) 100%);
  border: 5px solid white;
  padding: 5px;
  border-radius: 50%;
  width: 40px;
  aspect-ratio: 1;
  display: grid;
  place-content: center;
  box-shadow: rgba(133, 189, 215, 0.8784313725) 0px 12px 10px -8px;
  transition: all 0.2s ease-in-out;
}

.social-account-container .social-accounts .social-button .svg {
  fill: white;
  margin: auto;
}

.social-account-container .social-accounts .social-button:hover {
  transform: scale(1.2);
}

.social-account-container .social-accounts .social-button:active {
  transform: scale(0.9);
}

.agreement {
  display: block;
  text-align: center;
  margin-top: 15px;
}

.agreement a {
  text-decoration: none;
  color: #0099ff;
  font-size: 9px;
}
</style>
